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第3章

アルカンとシクロアルカン

アルカンの構造
アルカンの構造
The formation of carbon-carbon bonds leading to the creation of the carbon chain is the basis of organic chemistry. August Kekulé and Archibald Scott ...
アルカンの体質異性体
アルカンの体質異性体
Organic compounds of the same molecular formula can have different structural formulas called constitutional isomers, and the phenomenon is known as ...
アルカンの命名法
アルカンの命名法
In the late 19th-century, the number of new chemical compounds discovered increased tremendously. Hence, the necessity arose to develop a naming system ...
アルカンの物性
アルカンの物性
Alkanes are nonpolar molecules due to the presence of only carbon and hydrogen atoms. The electronegativity difference between carbon and hydrogen is ...
ニューマン投影法
ニューマン投影法
Different notations are used to represent the three-dimensional structure of molecules on two-dimensional surfaces. One of the most commonly used ...
エタンとプロパンのコンフォメーション
エタンとプロパンのコンフォメーション
In an organic molecule, free rotation about the carbon-carbon single bond results in energetically different conformers of the molecule. Due to this ...
ブタンの立体配座
ブタンの立体配座
Unlike ethane and propane that have only two major conformations, butane has more than two conformers. The staggered form of butane in which the bulky ...
シクロアルカン
シクロアルカン
Cycloalkanes are saturated cyclic hydrocarbons with carbon atoms arranged in the form of rings. They have two fewer hydrogen atoms than the corresponding ...
シクロアルカンのコンフォメーション
シクロアルカンのコンフォメーション
Adolf von Baeyer attempted to explain the instabilities of small and large cycloalkane rings using the concept of angle strain — the strain caused ...
シクロヘキサンの立体配座
シクロヘキサンの立体配座
Cyclohexane does not exist in a planar form due to the high angle and torsional strain it would experience in the planar structure. Instead, it adopts ...
シクロヘキサンのチェアコンフォメーション
シクロヘキサンのチェアコンフォメーション
The chair conformation is the most stable form of cyclohexane due to the absence of angle and torsional strain. The absence of angle strain is a result of ...
置換シクロヘキサンの安定性
置換シクロヘキサンの安定性
This lesson discusses the stability of substituted cyclohexanes with a focus on energies of various conformers and the effect of 1,3-diaxial ...
二置換シクロヘキサン:<em>cis-trans</em>異性体
二置換シクロヘキサン:cis-trans異性体
Depending upon the different spatial orientation of the substituents, the disubstituted cycloalkanes exhibit two types of stereoisomers. The cis isomers ...
燃焼エネルギー:アルカンとシクロアルカンの安定性の尺度
燃焼エネルギー:アルカンとシクロアルカンの安定性の尺度
The low reactivity in alkanes can be attributed to the non-polar nature of C–C and C–H σ bonds. Alkanes, therefore, were  initially ...
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